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Finding the Third Proportional to 68,746 and 145,826

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Solution

The third proportional to 68,746 and 145,826 is: 309,330.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,746 : 145,826 = 145,826 : x
  2. Step 2: Convert to fraction form
    68,746/145,826 = 145,826/x
  3. Step 3: Cross multiply
    68,746x = 145,826 × 145,826
  4. Step 4: Simplify right side
    68,746x = 21,265,222,276
  5. Step 5: Solve for x
    x = 21,265,222,276/68,746
  6. Step 6: Final answer
    x = 309,330.32

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.